Reports received from state virology laboratories for
enterovirus
isolates identified through May 1984 show echovirus 9 (38 isolates)
to
be the most commonly reported type of nonpolio enteroviruses thus
far
this year. The three next most common types are echovirus 7 (20
isolates), echovirus 30 (15 isolates), and coxsackievirus A9 (13
isolates). Coxsackievirus B5, the most common enterovirus type
isolated in 1983, is being identified less frequently so far this
year
(seven isolates reported). One hundred eleven (73.5%) of 151
nonpolio
enteroviruses identified in 1984 have been reported from the South
Atlantic, West South Central, and Pacific regions.
Reported by Respective State Virology Laboratory Directors;
Respiratory and Enterovirus Br, Div of Viral Diseases, Center for
Infectious Diseases, CDC.
Editorial Note
Editorial Note: A retrospective study of CDC's enterovirus
surveillance data from 1970 to 1982 showed that southern and
coastal
regions in the United States report enterovirus isolates
significantly
earlier than the rest of the nation and that an enterovirus type
isolated four or more times from these regions during March, April,
and May is likely to be among the 10 most commonly reported types
for
the remainder of the year. Reports from March, April, and May
received to date suggest that echoviruses 7 and 9 and
coxsackieviruses
A9, B4, and B5 will be common isolates this year (Table 2).
Echovirus
30 was frequently isolated only in January and February.
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